Grain-car door



' March 1930. J. SIEMSEN 1,749,163

GRAIN CAR DOOR Original Filed March 8, 1928 5 Sheets-Sheet 1 amwwm moi knew ejiwyen fiz'emsen Vea.

March 4, 1930.

Original Filed March 8, 1928 1E3... 5 TE.

5 Sheets-Sheet 2 um/whom jayan 52km we,

Mme/go March 4, 1930. J. SIEMSEN 1,749,163

' GRAIN CAR DOOR Original Filed March 8, 1928 5 Sheets-Sheet 3 i h 3 i a g E l i Swan/MM Patented Mar. 4, 1930 f fumTED TAT S PATENT oFFicE" JURGENsI MsEmorcUsTER, MONTANA, AssIeNoR or ONE-HALF ToANNA r F BILLINGS, MONTANA BERRY,

GRAIN-CAR noon Application filed March 8, 1928, Serial No. 260,095. Renewed May 29, 1929.

The inventionrelates to sliding doors in general, but more particularlyto those which are designed primarily for use on railway cars, principally grain cars.

It is one object of the invention to provide a generally improved and simplified door nected with each other and mountedin such' embodying upper. and lower sections coniamanner that when the uppersection is lowcred, the entire door may be slid into a re- "ceivingsheath, whereas upon closing of the door across the lower portion of the frame,

saidupper'section may be upwardlypjrojected into'sliding engagement with guides, to close the upper portionof the frame. I

y A further objectof the invention is to provide a simple and inexpensive, yet an eifici'ent and durable construction for slidably mounting the upper door section upon the lower section and for raising and lowering said upper section as desired. 1 a

i To -slide thelower sections ofthe door to and'from closed position, "a co-acting rack bar and pinion are provided, the pinion being carried by' a'shaft whose outer end may be rotated, for instance by a hand wheel, and it is a'further aim to provide novel means for locking this shaftwhen the door is closed,

thus locking said door iniclosed position.

Withthe foregoing in view, the invention resides inthe novel subject matter hereinafter described and claimed, description being accomplished byreference to the accompanying drawings.

Fig. 1 is a"sideelevation showing the door projected across the doorframe and illustratingthe upper doorsection in lowered position. I

Fig. 2 is'a view similar to Fig.1, partly roken' away and insection, showing the upper section of the door partly raised.

: line 3 of Fig. 2.

'Fig. 3 is a vertical transversesection on Fig. 4. is a similar View on line 4- 1of Fig.1, r r Fig. 5is a transverse sectional view on l ne i I 55 of 2, the door'bein'gomitted.

Fig. 6 is a sectional perspective view show ing the upper and lower sections of the door in juxtaposition. Y

5 Fig. 7 is an inner I side elevation of the door, frame and door-receiving sheath.

Fig. Sis a horizontal sectional view on line 8-8 of Fig.7.

lower rectangular section 12 and an upper rectangular sectlon 13, section 13 being slid-' ably'carried by section 12 for vertical movement. A sheath 14.- is provided at one side of the frame'9 to receive the door when the section 13 is lowered and both sections are bodily slid to. open position. At the side of the frame 9 opposite the sheath 14, a-guideway 15 is provided to receive the outer end of the door when the latter is opened, and at both sides of said frame, vertical guideways 16 are provided to receive the Vertical edges of the door section 13 when the latter is slid upwardly, the lower ends of the guideways 16 being in a plane disposed at or slightly above the upper edge of'the door section 12.

A horizontal rack bar 17 is secured to the outer side of the door section 12 and meshes with a pinion 18 on a shaft 19 passing through v one side wa1l'20 of the car equipped with the improved door.; To the outer side .of this wall 20, a plate 21 is secured, having'a bearing 22 for the shaft 19. Upon the outer end of this shaft, a hand wheel 23 is secured, said wheel having ahub 24. The bearing 22 and the hub 24 are provided with notches 2526 respectively, and the shaft 19 is formed with a transverse slot 27 with which the notches the final closing of said. door. Then, a looking pin 28 is inserted through these notches and the slot, thereby locking the door in closed tical edges with outwardly projecting flanges 30 and'the lower edge of this door section is preferably formed with a similar flange 31,

which flanges perform reinforcing functions. The rackbar 17 extends between thelower portions of the flanges 30 and is secured against the outer side of the door sect-ion 12,

being also secured to said flanges. At the upper edge of the door, an upper horizontal bar 32 extends between the flanges 30 and is secured to them, saidbar 32 being spaced outwardly from the door section 12, providring a slot 33.

A. central pair of vertical bars 34, and two additionalvertical bars 35, extend between and are secured to the upper and lower bars 32'17, all of these vertical bars being outwardly spaced from the door section 12. The

bars are provided with longitudinal channels 36 disposed toward'the' door section 12 and registering at their upper ends with notches 37in the bar 32. The bars 34aare preferably of angular cross section and one of these bars is provided-at its inner portion with rack teeth 38. o

The upper door section 13 is slidably received in the slot 33 so that it isfreelyslidable between the bar 32 and the door section l2, and betweenthis section and-the vertical bars 34 35, the. vertical edges 39 of saiclsection 13 being slidably engaged with the flanges 30, while the upper edge of; said section 13 isprovided with a lateral reinforcing flange 40. Secured to the outer side of section 13, are vertical reinforcing .bars 41 constitut ng ribs which are slidably received in I I the notches '37 and channels 36, assisting not only in generally'reinforcing the door section tion." The pins 44 are preferably suspended 13, but guiding its vertical movement. The bars 35 are formed with openings 42 and the bars or'ribs 41 have similar openings 43, a

spaced apart vertically.- When the openings 42- -43 are in alinement with each other, lock- 'ing pins 44' may be 'passedthrough them to hold the door section 13 in the desired posiby chains or the like 45 to prevent loss.

Lying against the outer side of'the door section 13 is a pinion 46 having an inwardly projecting journal 47 rotatably received in an opening 48 in said door section, This pinion is also provided with an outwardly projecting operating shaft 49 with which a hand crank or the like 5Q' ma-y be engaged. This pinion meshes with theirack teeth 38 and rotation of saidpinion serves to. either raise or lower the upper door section .13,as occasionmay demand. Stops 51 may beprovided' to limit the ascent of this door section, by striking the bar 32. Attention is invited to- V the door' frame '9. -Otherkeepers 54are tire door against horizontal sliding, forming the fact that the outer side of the pinion 46 7 lies against the inner sides of thelbars 34,' the latter being disposed'at' opposite sides of the shaft .49. Thus, these bars34, in addition to forming parts of a rigid frame structure for the lower door'section- 12, 'serve to hold the pinion 46 in'a vertical position, and when the construction herein disclosed isfol lowed, said bars, also prevent withdrawal of the journal 47 from'the opening 48.

The parts shown at 52 iniFig. 1, are end portions of a bar which isused to brace the door against outward bulging whenin use. The ends of this bar arereceivable in appropriate keepers 53 carried by the sides of preferably provided at the upper end of the frame to merely carry the bar 52 when it is not in use. l I The door may be easily projected from thesheath 14' and only after: such projection,

can the upper door section 13 be raised.

When this section is raised, it looks the en-.

somewhat of a safeguard,veven if the hand wheel 23 and shaft 19 are not locked. 1 The section 13 is held in raised position by the pins 44 and upon removal of these .pins, the pinion 46 may be rotated to lowerxsaid section 13 to anydesirediextentr When it is completely lowered, operation-of the-hand wheel 23 will retract the entire door'into the sheath 14.

Excellent results are obtainable from the general construction shown and described and it "is therefore preferably. followed.

However, as above stated,variations may be i made within the scope of the invention as: claimed.

Preferably, I provide a pin 44* pin 44 with the teeth of said pinion thereby 7110 facilitating the insertion of the pins 44.

I,claim:- i 1. A door comprising a lower slidable section of rectangular form and provided at its vertical edges with "laterally projecting i-i5 flanges, an upper horizontal barrex'tending between and secured to the upper ends 'of said flanges, said bar being outwardly spaced 3 from said lower door section, a'lowerflhori- I zontal bar extending between andsecuredto 1 20 said flanges, vertical bars.extendingbetween and secured to said upperand lower horizontal gbars, said vertical bars" being outwardly spaced from said lower door sec'tion,.f

and an upper rectangular door section slid "i ably'received between said-lower section and said upper and'vertical bars, the vertical edges of said upper section;beingslidably engaged with said flan es; H r c j 2. A door compris ng a lowerslidable sec 1 tioriof rectangular form and provided at its vertical edges with laterally projecting flanges, an upper horizontal bar extending between andsecured. to the upper ends of said flanges, said bar being outwardly spaced from said lower door section, a lower hori zontalbar extending between and secured I to' said flanges,vertical bars extending between and secured to said upperand lo horizontal bars, said vertical bars being outw'ardly spaced from said lower door section and having longitudinal channels disposed toward the same, and an upper rectangular I door section slidably received between said 15 lowersection and said upper and vertical -bars, said upper door section having vertical ribs slidable in said channels.

fixed my signature.

' JURGEN SIEMSEN.

3. A structure as specifiedin claim 2, said I vertical bars'and ribs'having openings for registration when said upper door section israised, and pins insertible' through said 7 openings.

4:- A door comprising a lower slidable section of rectangular form and provided at its vertical edges with laterally projecting flanges, an upper horizontal bar extending between and secured to the upper ends of said flanges, said bar being outwardly spaced from'said lower doorsection, a lower horizontal bar extending between and secured to said flanges, a pairof vertical bars extending between and secured to said upper and lower horizontal bars, said vertical bars beingdisposed in closely spaced relation with each other and spaced outwardly from said 1 lower door section, one of said verticalbars 7 having rack teeth, an upper rectangular door section slidably receivedbetween-said upper I and said vertical bars and having its edges slidably engaged with said flanges, and a pinion disposed at the outer side of said upper door section, said pinion being provided with a journal received in an opening in said upper door section and with an operating shaft projecting outwardlybetween said bars, said p 1 5; A door comprising a lower slidable section ofxrec'tangular-form and provided at {its Vertical edges with'laterally projecting bars lying against the outerside of said pin- I ;fl ang'es, 'anf upper-horizontal bar extending t between-and secured t'o'the upper ends of said flanges, saidbar being outwardly spaced y @from said lower door sect on, a lower horisaid flanges, vertical bars extending between zontal bar extending between and secured to p and secured to said upper and lower horizontal bars. said vertical bars'being outwardly spaced from said lower door section, two of said vertical bars being disposedin closely spaced relation, the" other bars having lon- "gitudinal channelsdisposed toward said lowerdoor'section; an upperrectangular "i door section slidably' received between said lowerv door section and said "upper 'and'ver- 

